Pump.



No. 884,291. PATENTED APR. 7, 1908.

A W. VON OBGHELHABUSER & C. STEINBEGKER.

PUMP. APPLIoATIoN FILED JAN. s1, 1907.

2 sHETs-sHBET 1.

Z 7 0 O w j 3 o 5 lo o C ozm im 0 2 9 W /f l ooooowvoo ooooooo J .7 3.,?ooooo .ooo 7/. 000005500 ONQW,

.m e m w m Ze. 0,

fwihmm c] a?" e PATENTBD APR. 7, 190s. BINBBGKBR.

W. VON (HJCHELI-IAEUSER4 a G. ST

PUMP. MPLIOATION FILED JAN. a1, 19074 2 SHEETS-SHEET 2.

lnven foal;

wmmm 4 v UNITED sTATns ,PATENT WILHELM VON OECHELHAEUSER, OF DESSAU, ANDCARL STEINBECKER, OFLANGF'ER,

' NEAR DANZIG, GERMANY.

PUMP.

Speoication of Lettere Patent.

Patented April '7, 190.8.

. pumps 'and particularly that style having a differential pistonadapted to be operated by the explosive engine to which it supplies theair and gas immediately to the respective receiving chambers,

. struct a simp 20 It is the ob'ect of our invention to con le andeflicient pump of the above character and to provide the same withimproved cylinders and pistons, and air and gas channels within theframe, as will be more particularly hereinafter described.

In the accompanying drawings,-Figure 1. represents a vertical section ofour improved pump, showing its relation to a vertical gas engine withwhich itmay be used; Fig. 2 is a vertical section of the pump casing atright angles to Fig. 1; and Figs. 3, 4, and 5 are horizontal sectionstaken on the lines 3 3, 4-4 and 5-5 of Fig. 2.

Referring to these drawings, E represents l a gas engine of the verticalt pe with op f in the-gas engine.

positely'moving pistons, but w lich may obviously. be of any similarstyle requiring separate gas and air receiving chambers. The base B ofthe engine is provided with an extension B', which forms a suitablefoundation 4for the support of the pump. rThe extension of the baseframemay be utilized for theair and gas supply channels within the framewith the air and gas mains, and may be provided with a suitable valve V,as indicated.

The ump comprises a suitable supporting frame aving'two legs N, Nsupporting the differential cylinder C. The upper part of the pumpcylinder is for4 the d1scharge of air and contains a suitable suctionchamber l0 with mechanicall controlledv inlet valve 11 and automatical ycontrolled discharge valves 12, having an exit 13 for immediateconnections With the air receiving chamber The pump cylinder containsthe differential piston consisting of the piston proper P and a tubularpiston rod P. The relation of the diameters of lthe pistouproper andthetubularpiston depends upon the required or desiredproportion of gasand air in the ex losive mixture and the air required for displacing theases of combustion after each explosion o the engine. The tubular pistonl is guided in a suitable cylindrical extension 14 at. the bottom of thepump cylinder roper. Around the extension is arranged t e gasdischarging chamber 16, and the suction chamber 17, the latter havingthe mechanically controlled suction valve 18 and the former having theautomatically controlled discharge valves 19 lWith like exit means 20for immediate connection with the as receiving chamber f2 in the engine.fie upper part of the cylinder is further provided with suitable handholes 21 for convenient access to the' air discharge valves and otherhand holds 21a are provided around the. gas discharge chamber 16 forconvenient access tothe gas discharge valves. chamber 17 is connectedthrough the hollow supporting legs n to the hollow space inthe base ofthe frame B', thereb providing a suitable supply channel for t e gas tothe suction chamber. The mechanically controlled inlet valves 11 and 18may be double seated valves or piston valves as occasion may requireinstead of the plain disk valves shown. At the opposite side in theother 1 supporting leg n is a similar conduit for the air supply. Theair is conveyed by means of the a( itional connectin piece'22 to the airsuction chamber 10 attie top of the cylinder C.

The generally employed method of operating the controlling valves of gasengines by means of ecciintrics on a drivin shaft and connecting gear isavoided in th1s 'construetion, as the inlet valves for the gas and airare operated by a double lever mechanism in direct connection with thecross head of the piston. Although the uantities of gas and f air reuired are p'artia ly proportioned by the di erential cylinder capacity,the exact proportion of the as and air in the explosive mixture requiredor each stroke under varying loads is controlled by this lever mec anismand a suitably adjustable governor. This lever mechanism consists of apivoted bar 30 having one end connected by a link 31 to the cross headand the other end to an air and gas.

elbow lever 32 on the pump frame. At

time of opening and closing these inlet valves. '.lfhis governor may beof any well known design and vbe driven from the main shaft by f meansof a belt or gear as circumstances may require.

- by suitable lirm connections 37 lwith the rod 35'y which, as thegovernor rises and falls, actuates the trips 38 sooner or later, therebycontrolling the time of opening and closing the gas and air inletvalves.

The operation is as follows: On the down stroke of the piston, air istaken into the pump cylinder above the piston through the air inletvalve 1l from the air channels n and 22 which communicate with theatmosphere; the governor, acting upon the valve 1l, regulates thequantity of air required or desired. On the up stroke of the pis-ton,

this air is forced through the automatic discharge valves l2 into theair receiving chamber ofthe gas engine, whence, at the proper moment,part of the air will be utilized to dispiace the gases of combustion ofthe pre,

I valve 18 from suction cham vious explosion and part to form theexplosive mixture for the next explosion; at the same time gas is takeninto the ump cylinder below the piston throu h t e gas inlet er 1 7 andsupply channels, n etc. the governor, also, by acting upon the valve 17,regulates the re quired or desired quantity. v On thesubseu'ent downstroke, this gas is forced through t e automatic discharge valves 19,into the f gas receiving chamber JQ of the gasengine,

and from there at the proper moment into `the working c linder.

What we c aim is:-- 1. A pump of the character described nava cylinder,a differential piston therein,

an extension from said cylinder, means forming a gas suction chamberaroundsaid extension,` a valve communicating between said chamber andthe cylinder, and means A governor 35 controls the- The governor isdirectly connected with 3. A pump of the character described havc lng asupporting frame of two legs, a cylinder a differential piston' therein,,means forming air and gas suction chambers )in said cylinder, one ofsaid legs having a conduitY therein communicating with the air `suctionchamber, and the other leg having a conduit ommunidating with the gassuctionpham- 4. A pump for supplying air and gas to a gas engineJ acylinder having a differential piston therein, means forming suctionchamers for air and gas respectively, valves for opening and -closinffsaid chambers, and means connected with the cross head yof said pistonfor operating said valves, and a governor connected, therewith wherebythe opening and closing of the said valves may be regulated.

5. A'pump for supplying air and gas to a gas englne, com rism'asupporting frame, a cylinder, a di erentlal piston therein, and meansforming a'gas discharge chamber on the lower part of said cylinderadapted 'to communicate directly with the gas engine.l

In testimony whereof we have signed our names to this specification in ttwo subscribing witnesses.

WILHELM VON OECHELHAEUSER. CARL' STEINBECKER.

Witnesses to the signature of W. von Oechelhaeuser JOHANNES HILL, AWOLDEMAR HAUPT.

he presence of WALTER ABBE, A HUBERT HoWsoN.

Witnesses to the signature of C. Steinbecker: Y

